Like Elvis in '68, Microsoft is itching for a "comeback," and Windows 7 is the perfect excuse. In fact, this week in LA at the Professional Developers Conference, Windows 7 officially shoved Vista aside. Having suffered through the often deserved criticisms of that ill-fated OS installment, Microsoft's people are thrilled to tears to be able to talk about something (anything!) else. On Sunday, they took journalists through a lively 7-hour orientation on Win 7, then handed off a Dell XPS M1330 loaded with pre-beta Build 6801. Thankfully for the overworked, underappreciated developers at Redmond, it's surprisingly stable, and its look and feel already puts Vista to shame.